Refrigerator-car.



J. THORNTON & E. HEYMANSON.

REFRIGERATOR GAR. APPLIGATION FILED NOV. 13. 1908.

Patented Mar. 15, 1910.

WITNESS A TTOHNE Y8 *nrrn PATENT @lhllflltlltl.

JEROME THORNTON AND EDWARD HEYMANSO'N, OF NEW YORK, N. Y.

REFRIGERATOR-CAR.

Specification of Letters Patent.

Patented Mar. 15, 19161.

Application filed November 13, 1998; Serial No. 462,426.

To all whom it may concern:

Be it known that we, Jerome THORNTON and Eowano HEYMANSON, citizens ofthe United States, and residents of the city of New York, borough ofManhattan, in the county and State of New York, have invented a new andImproved Refrigerator- Car, of which the following is a full, clear, andexact description.

This invention relates to refrigerator cars such as are used forshipping perishable provisions.

The object of the invention is to produce a refrigerating system whichwill not involve the use of iceand which will enable the car to be keptrefrigerated while on the road.

The invention contemplates the use of refrigerating apparatus, such asammonia machinery, in which the cooling water for the condenser is keptat a sufliciently reduced temperature to do this work, by a specialconstruction and arrangement of the tank in which it is normally held,so that the surface of the tank is exposed to the rush of air developedby the motion of the car.

The invention consists in the construction and arrangement of the partsto be hereinafter more fully described and particularly set .forth inthe claims.

Reference is to be had to the accompanying drawings forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in both figures.

Figure 1 is a .vertical section through a car provided with our coolingapparatus, the middle portion of the car being broken away and certainparts of the running gear being omitted; and Fig. 2 is a cross sectiontaken through the upper portion and roof of the car.

Referring more particularly to the parts 1 represents the body of thecar, which may be of ordinary form. At a convenient point this car isprovided with a compressor 2 for ammonia or a similar cooling agent. Thedelivery pipe 3 of this compressor leads over to a condenser 1 and thiscondenser is connected by a pipe 5 with a congealer 6. The ammonia orsimilar substance is admitted to the congealer through an eXpansionvalve 7. Within the congealer (3 the ammonia passes through an expansioncoil 8, and this coil connects with a return pipe 9 which leads back tothe compressor. The

water for condensing the ammonia gas passes through a condenser coil orworm 10 which is disposed within the condenser, as indicated, waterbeing supplied to this coil by a supply pipe 11, which leads down fromone end of the condenser water tank 12, which is preferably located atthe roof of the car as shown. Near the condenser 4 a pump 13 isprovided, which receives water by a pipe 14 connected with the coil 10,and this pump forces the water by a delivery pipe 15 to the end of-thetank 12 opposite to the pipe 11. The pump 13 and the compressor 2 may bedriven by belts 16, 17 from an axle 18 of the car, as indicated. On theside wall of the car, a refrigerating pipe coil 19 is provided, and thiscoil forms a loop or inner coil 20 which passes through the interior ofthe expansion coil 8 in the interior of the congealer 6, as indicated.In this coil 19 brine or a similar substance may circulate, the saidbrine being cooled in the inner coil 20.

The construction of the tank 12 will now be described, referringespecially to Fig. 2. This tank is adaptedto be formed of sheet metal orsimilar material, the upper wall or cover 21 of the tank being formedwith offsets or deep corrugations 22. This has the effect of producing aplurality of channels 23 which extend continuously from end to end ofthe tank. These channels 23 communicate at their ends with openings 23in the ends of the car so that as the car advances the air passescompletely through them. Passing through in this way the air tends tocool the water, which finds its way up into inverted channels 24, whichare formed on the under side of the cover 21. In this way the waterwhich is standing in the tank is'cooled down sufiiciently to enable itto be used effectively in the condenser 4.

With the apparatus described, a car may be refrigerated to asufliciently low temperaturefor ordinary purposes without the use ofice. I

The tank 12 is covered by a car roof 25 of any suitable constructionsuch as that shown. The bottom of the tank 12 is ex posed to theinterior of the car and this tends also to reduce the temperature of thecondenser water, making it more effective in the condenser.

Having thus described our invention, we

claim as new and desire to secure by Letters Patent:

1. A car having a refrigerating system including a condenser incombination with a condenser Water system including a tank disposed inthe upper portion of the car, said tank having a deeply corrugated coverpresenting a lurality of air channels extending longitudinally of thecar and through which the air may pass as the car advances, and meansfor circulating water from said tank through said condenser.

2. A car having an ammonia refrigerating apparatus includin a condenserand a congealer a refrigerating pipe connecting the same, a cooling pipeexposed to the interior of said car and having a loop passing throughsaid congealer a condenser Water tank having an area exposed to the rushof air developed by the car, and means for circulating the condenserWater from said tank through said condenser.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing Witnesses.

JEROME THORNTON. EDWARD HEYMANSON. Witnesses:

F. D. AMMnN, JonN l. DAVIS.

